So my question is: should I wait for the trinket to come off cooldown before using my other cooldowns again or should I just use Imp Swarm, Blood Fury, and Dark Soul: Knowledge together and manage the cooldown from the trinket independently?

im not expery demo lock, but from what i've read it's a strong NO on that. delaýing DS for 30 sec isnt worth it.

im not expery demo lock, but from what i've read it's a strong NO on that. delaýing DS for 30 sec isnt worth it.

If you want to be sure, if it's a win or loss, to delay cooldowns, make a timeline of them. This works, if you know, how long the encounter will be, eg. when you are struggling at the enrage timer.
In those cases it can happen, that different cooldowns can only be used the same times, so lining them up may most likely result in a major increase in DPS.
That's some preperation, you can do before the fight.

Which raid encounters Grimoire of Supremacy will win over Grimoire of Service?

Which best way to dps on Wind Lord Meljarak HC? Personally I'm doing it: pre-pot, Imp Swarm, Dark Soul,Hand of Guldan, Felstorm, Corrup at all targets, spam hellfire until i got enough fury to go demon form, after i went demon form, immolation aura, doom at all targets, Carrion Swarm, Void Ray. Back to caster and spam hellfire,Hand of Guldan when ready, 1st burst phase Dark Soul, Grimoire of Service, Felstorm, Hand of Guldan, Demon Form and spam Touch of Chaos. 2nd burst phase pot, Doomguard, Imp Swarm and doing exactly what I did on 1st burst phase. On 3rd burst phase I use Dark Soul and Soul Fire at 25<%.

Which raid encounters Grimoire of Supremacy will win over Grimoire of Service?

Which best way to dps on Wind Lord Meljarak HC? Personally I'm doing it: pre-pot, Imp Swarm, Dark Soul,Hand of Guldan, Felstorm, Corrup at all targets, spam hellfire until i got enough fury to go demon form, after i went demon form, immolation aura, doom at all targets, Carrion Swarm, Void Ray. Back to caster and spam hellfire,Hand of Guldan when ready, 1st burst phase Dark Soul, Grimoire of Service, Felstorm, Hand of Guldan, Demon Form and spam Touch of Chaos. 2nd burst phase pot, Doomguard, Imp Swarm and doing exactly what I did on 1st burst phase. On 3rd burst phase I use Dark Soul and Soul Fire at 25<%.

I'm doing it right or I could change something, Zinnin?

For Meljarak, it really depends on when you are getting your burn phases. My guild we get our first and second burn back to back and if I pop everything on the pull get my cooldowns on the 2nd and 3rd, so that is what I do. On the pull I Hellfire for 3-4s, and then HoG, Imp Swarm, GoServ, Hog, DS->Meta, Doom everything and I do my corruptions after all the Doom's are applied. From there its just corruption maintenance and making sure you have max fury before every burn.

As far as GoSup and GoServ on specific fights goes. I was actually talking with depravitty about this last night, but I am starting to get worried that I am losing DPS with GoServ due to pet travel time, so on some fights I think I need to make sure I am positioned better (Sha for instance if your at max range, the actual distance until your pet gets to where it's going to go is a long time). For the most part though I feel like it really depends on personal preferences, there are very good parses for both talents on all the fights.

Purely cosmetic. It had an impact during Beta so you might find posts saying it was an improvement, but that was fixed well before release.

Not completely. For trinket procs etc it works just as the normal shadow bolt.
But in terms of crit or noncrit it flattens the RNG a little bit, because every of those events is calculated indepenantly per shadow bolt.
Yet it is neither a DPS in- or decrease, if you shoot an infinite or to stay realistic, a very high amout of them.(for any questions look up expected value in probability theory, I don't know, if I can explain it correctly in English as it is not my nativ language.)

Purely cosmetic. It had an impact during Beta so you might find posts saying it was an improvement, but that was fixed well before release.

not entirely cosmetic, each hit assumes the hit cap you are currently sitting at - theoretically you could gain/lose dps if you are under hit cap and you're using it (it's what some people did VEEEEEEEEEERRRY early expansion before they were able to get hit cap) though now i wouldnt recommend using it for that reason :P

The best thing about it is that more instances means RNG gets smoothed out. You're less likely to have a good/bad streak. Plus, each hit would have a chance to proc any trinkets/etc.

Well, assuming each hit still counts separately. I haven't been keeping up with Demo beyond major changes, so I'm not sure if this is what Jessicka is referring to by it having been fixed.

I believe things only have a chance of proccing from the first of the 3 shadow bolts, I also believe that it was tested and proven with stacking trinkets, with every cast only giving 1 stack instead of 3. I could be wrong, but this is how I believe it to work.

So not crit like Zinnin says in the original post? And I guess the 3036 is to get the extra tick from Doom then? If I refresh doom with say 20 seconds to go, with Pandemic it adds to the duration, do I loose that tick? do I only get the extra tick if it goes for the full duration and then drops off?